Coverings of graded pointed Hopf algebras
Quantum Algebra
2014-08-05 v2 Rings and Algebras
Abstract
We introduce the concept of a covering of a graded pointed Hopf algebra. The theory developed shows that coverings of a bosonized Nichols algebra can be concretely expressed by biproducts using a quotient of the universal coalgebra covering group of the Nichols algebra. If there are enough quadratic relations, the universal coalgebra covering is given by the bosonization by the enveloping group of the underlying rack.
Keywords
Cite
@article{arxiv.1401.8061,
title = {Coverings of graded pointed Hopf algebras},
author = {William Chin and Esther Beneish},
journal= {arXiv preprint arXiv:1401.8061},
year = {2014}
}
Comments
to appear in J. of Algebra